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ThinkMind // International Journal On Advances in Telecommunications, volume 12, numbers 1 and 2, 2019 // View article tele_v12_n12_2019_2


Gaussian Tone Reservation Clipping and Filtering for PAPR Mitigation

Authors:
Yves Louet
Jacques Palicot
Désiré Guel

Keywords: PAPR; clipping; Gaussian; OFDM.

Abstract:
A Gaussian function for clipping associated to a Tone Reservation filtering is presented in this paper in order to decrease multicarrier Peak to Average Power Ratio (PAPR). The advantage of this approach is twofold: first, the Gaussian clipping function is a soft non-linear function which keeps constant the average power of the signal, which is a characteristic of great importance in real transmission; second, the Tone Reservation filtering by inserting the corrected signal on reserved carriers guaranties a complete downward compatibility (it means that the receiver does not need to be changed with the update of the transmitter) with classical receivers. The filtering is performed in the frequency domain by putting the corrected signal on the free carriers of the considered standard (in our case the Wifi IEEE802.11). Furthermore, our approach does not need any side information. In addition to the previous advantages, extensive simulations show very interesting performance in the complexity/PAPR decreasing trade-off compared to others similar methods.

Pages: 20 to 29

Copyright: Copyright (c) to authors, 2019. Used with permission.

Publication date: June 30, 2019

Published in: journal

ISSN: 1942-2601

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